Question

1. If a cell underwent mitosis, and its daughter cells were immediately exposed to chemicals that damaged the DNA, at which stage of the cell cycle checkpoint would you predict the cell would arrest? C
   1. M checkpoint
   2. G2 checkpoint
   3. G1 checkpoint

G1, G2, or the M checkpoints

2. Which of components of the electron transport chain directly move protons across the inner mitochondrial membrane?

Answer 1

1. B

2. Electron carriers which are loacted in the inner mitochondrial membrane, specifically, complex 1, 3, 4 and ATP synthase enzyme.

Please rate high.